1. Click "Choose Files" button and select your XLS files you would like converted.
2. Click on the “Convert to XLSX” button to start the conversion.
3. When the status change to “Done” click the “Download XLSX” button
To convert in the opposite direction, click here to convert from XLSX to XLS
A spreadsheet created with Microsoft Excel, an XLS Document File is used to store and display data in tabular form that can include text, numeric values, formulas, external data connections, images and charts. Although typically employed within business contexts to organize and analyze information more efficiently; they are equally suitable for personal use. There are two varieties of XLS files ...
An XLSX is a Microsoft Excel Open XML Spreadsheet file format developed in 2007. Microsoft introduced this format in 2007 as an upgrade from its prior XLS file format; using its zip-like structure it makes file transfers between computers simpler as well as opening them with various spreadsheet applications such as Apple Numbers, Google Docs or LibreOffice Calc. Organization is ...
Upload a XLS file, click "Convert", and use additional options to quickly modify its contents before downloading the final XLSX file after processing has completed.
Our XLS to XLSX converter works on Windows, Mac OS, Linux, iOS and Android systems alike - our servers automatically process each file without requiring you to install plug-ins or applications!
We guarantee 100%% of the privacy and have no access to your files once uploaded/converted, making them inaccessible by anyone and completely protecting them.